Avionics / GPS / ADS-B | GPS Adaptors & Bluetooth Receivers | NGP904 | Bad Elf GPS Pro+ with Bluetooth made for iPod touch, iPhone and iPad. | Pooleys Flying and Navigational Products and Accessories
New iPod touch said to have built-in GPS & new colors, to act as game controller | AppleInsider
Tiny Dock-Dongle Adds GPS to iPad, iPod Touch | WIRED